Window-ventilator



WINDOW (N0 Model.)

Pa (1 Aug.5, 1890.

WITNESSES:

UNITED STATES PATENT OFFICE.

JULIUS DE LONG, OF BROOKLYN, NEXV YORK.

WIN DOW-VENTI LATO R.

SPECIFICATION formingpart of Letters Patent No. 433,450, dated August 5,1890.

Application filed April 18, 1890. $erial No. 348,496. (No model.)

To all whom it may concern-.-

Be it known that I, JULIUS DE LONG, a, citizen of the United States,residing at Broole lyn, in the county of Kings and State of New York,have invented new and useful Improvements in Window-Ventilators, ofwhich the following is a specification.

My invention relates especially to devices employed for securing theventilation of rooms and apartments, especially those employed forsleeping purposes, and has for its object the provision of an attachmentfor Window-sashes, whereby air may be admitted over the upper rail ofthe lower sash when the same is slightly raised, while at the same timeno opening will be left between the sash and the sill of the window.

To attain the desired end, my invention consists, essentially, in thecombination, with a window-sash, of a plate, preferably made in twoparts, to secure longitudinal adjustability, said plate having at ornear each end an arm which extends up the side stile of the sash througha box or eye secured to the stile and acting as a guide. The box alsocontains a thumb-screw for securing the plate in a raised or loweredposition when required, all of which-will be hereinafter first fully described, and then pointed out in the claims.

In the drawings, Figure l is a view in elcvation of a window wherewithmy device is employed, showing the sash closed down. Fig. 2 is a likeview showing the sash raised. Fig. 3 is an enlarged sectional view atline 0000 of Fig. 1. Fig. 4 is a like view at line y y of Fig. 1.

Like letters of reference indicate corresponding parts in all thefigures.

A is the low r window-sash, and O the upper sash.

D is the window-frame.

E is the sill.

F G are the two parts of a plate, the part F having projecting lips H,which overlap part G at the center in order that the plate may beadjusted longitudinally to fit any width of window.

I I are rods secured near the outer extremities of plate F G, andhearing at. their tops knobs or enlargements J.

will resume its original position.

K K are blocks, each having a central perforation L, as illustrated inFig. 3, for'the reception of a rod 1, and a thumb-screw P, for bearingupon the rod when raised or lowered, if desired.

hen constructed and arranged as above described, my device may be easilyapplied to any window-sash and air admitted between the meeting-rails.\Vhen the sash is raised, the plate will fall, its limit of movementbeing regulated by means of the knobs J on the top of the rods 1, and itis held closely against the lower rail of the sash when in any position.As the sash is closed down, the plate By having the'boxes secured to thestiles of the sash it is not necessary to have any perforations throughthe plates, and by reason of the plate being made in two parts it can beused with varying widths of window-sashes.

Having now fully described my invention, what I claim as new therein,and desire to secure by Letters Patent, is-

1. A window-ventilator attachment which consists of a divided adjustableplate having vertical rods at each extremity, and blocks secured to theside stiles of a sash through which the vertical rods pass,substantially as shown and described.

2. The combination, with a window-sash, bearing-blocks secured to theside stiles, of a plate resting against the lower rail of the sash andprovided with rods which extend through perforations in said blocks,substantially as shown and described.

3. The combination, with a window-sash, bearing-blocks secured to theside stiles, said blocks being perforated longitudinally and providedwith thumb-screws, of a longitudinally-adjustable plate restingagainstthe lower sashrail, said plate bearing vertical arms near eachextremity, passing through. the longitudinal perforations in the blocks,and terminating in enlargements or knobs, substantially as shown anddescribed.

JULIUS DE LONG. Witnesses:

A. M. PIERCE, GERTRUDE WARD.

